DENVER (CBS4)- A new invention from a Colorado man, aimed at helping save lives and stop accidents from happening, is showing promise according to traffic engineers around the Denver metro area. It's ...

New research shows that AI in cars might warrant a new, four-light traffic signal that is more efficient. Getty Images/iStockphoto Surely this will complicate the game of red light, green light.

Sensors in the ground communicate with the traffic signals to constantly retime the signals based on road conditions. If more cars are coming in one direction, the direction with heavier traffic flow ...

MINNEAPOLIS — It lasts mere seconds but can feel like minutes. Getting stuck at a red light, especially with no traffic around, is frustrating at times. We wanted to learn: How are traffic lights ...